Ski-Doo riders get three new track options for 2008. Lengths
offered include 16x46x2.25, 16x154x2.25 and 16x163x2.25. The new Challenger
Lite Rev XP track features new single-ply technology that results in a six
pound weight reduction. The Challenger Lite is only available on the X-package
Stopping is just as important as accelerating to mountain
riders. That's why you'll often find the best braking equipment on the long
sleds. For 2008, Ski-Doo is going with a new high-performance Brembo brake
system The new brake is attached to the drive shaft outboard of the tunnel,
where snow and cold air can cool the caliper and housing. Summit X models
feature racing brake pads and a steel-braided brake line for increased
Rev XP Steering
The old Rev's steering system was comprised of 133 parts
with a sum weight of 13.5 lbs. The rack-and-pinion steering system found on the
new Rev XP weighs 8.5 lbs. and is comprised of 33 parts. It also has a tighter,
more responsive feel to it and a tighter turning radius.
One thing Polaris has fought with since the IQ chassis was
first introduced is the front suspension's spindles. They have been tweaked
little by little ever since. For '08, the spindles went through another
updating and the latest effort has resulted in the best-steering IQ to date.
Steering effort is said to be reduced by 15 percent, with a 1-pound reduction
600 H.O. Cleanfire
The 2008 600 RMK features the 600 HO Liberty Cleanfire twin
that produces 125 hp. The fuel-injected engine used the same Cleanfire
technology found in the 700 and 800 RMK. The mil was used in trail sleds last
year and new high-altitude calibration has made it a no-brainer choice for a
136 Crossover Skid
Polaris crossover-segment riders will appreciate the new
163-inch coupled rear suspension. The new skid controls weight transfer better
than previous versions, keeping the rider in control. The skidframe also
features RydeFX gas front shocks and heavier torsion springs.
Improved Intake Bezel
If you've had the problem of the triangle intake screens
next to the headlight on your M-sled or Crossfire, Arctic Cat has come up with
a solution. All 2008 models will have a push-mount plastic rivet added to keep
the bezel in place.
Cat engineers updated the steering system's center tie rod
link and added new lower bell crank arms. The new design, along with the new
spindles, allows for a tighter turning radius, which is exactly what the
Another big improvement to the 2008 Arctic Cat M-series
lineup is the change to gripper seat material on the top of the seats. This new
material has a much better grip compared to previous M-sleds and keeps your
butt or knee in place during mountain riding.
The Nytro MTX is the hottest new mountain sled in Yamaha's
'08 lineup. The Nytro's new FX chassis is based on a race-proven platform and
features a radical riding position that is perfectly suited for mountain
riding. The chassis features third-generation front suspension with tall shock
towers for maximum ground clearance. Over-the-engine steering lets the engine
be tucked deeper into the chassis. Tall hooked handlebars give the rider
maximum control, while the chassis components are designed for lightweight and
durability. The FX chassis is the base for the Nytro MTX, along with new trail
models for Yamaha.
The popular Maverick track has been resized for the Nytro
MTX. The 15x153x2.25-inch tread means Yamaha is trying to get the most out of
the lightweight Nytro by sticking to a 15-inch-wide track instead of the
16-incher on the Apex MTX. Also, you might remember the old Vector Mountain SE
was a 120-hp sled with the 16x162x2.25 Maverick. Yamaha could have put that
track on the Nytro MTX, too, but didn't.
153 ProMountain Skid